1777890040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{54403}}^1$

素因数の和:54476

約数の個数: 64

約数和(自身を含む): 4308796800

約数和(自身を除く): 2530906760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 3268, 4085, 6536, 8170, 16340, 32680, 54403, 108806, 217612, 272015, 435224, 544030, 1033657, 1088060, 2067314, 2176120, 2339329, 4134628, 4678658, 5168285, 8269256, 9357316, 10336570, 11696645, 18714632, 20673140, 23393290, 41346280, 44447251, 46786580, 88894502, 93573160, 177789004, 222236255, 355578008, 444472510, 888945020, 1777890040]

約数ペア:

[(1, 1777890040), (2, 888945020), (4, 444472510), (5, 355578008), (8, 222236255), (10, 177789004), (19, 93573160), (20, 88894502), (38, 46786580), (40, 44447251), (43, 41346280), (76, 23393290), (86, 20673140), (95, 18714632), (152, 11696645), (172, 10336570), (190, 9357316), (215, 8269256), (344, 5168285), (380, 4678658), (430, 4134628), (760, 2339329), (817, 2176120), (860, 2067314), (1634, 1088060), (1720, 1033657), (3268, 544030), (4085, 435224), (6536, 272015), (8170, 217612), (16340, 108806), (32680, 54403)]